Ethernet link failures
To assist in solving problems with the Ethernet ports that connect the Storwize® V3500 system to one or more Ethernet networks, use this procedure.
About this task
The management GUI provides notification and assistance in fixing many connectivity errors. If possible, go to in the management GUI and see if there are error alerts associated with missing hardware or Ethernet errors. For any error alerts, run the fix procedure in the recommended order.
- If there are two canisters in the control enclosure, log into the service assistant of the other node canister, then use the Change Node panel on the Home page to select the canister with the failed Ethernet link. In the Node Detail, view the Ports tab to understand each port's operational state. Refer to the Access tab to see what system addresses provide access to management functions.
- At the rear of the node canister, examine the Ethernet status LED for each Ethernet port, as described in Procedure: Understanding the system status using the LEDs.
You might also be alerted to an Ethernet link failure by network monitoring tools on the network connected to the link, or system functions that depend on the Ethernet link might be degraded or offline. System functions are listed in Table 1.
- If several links connected to the same switch are failing, perhaps that switch requires maintenance.
- If both Ethernet port 1 and 2 have failed together, the node canister might need to be replaced.
- Ensure that the Ethernet cable providing the link is securely connected at both ends, and the equipment on both ends is powered on.
- Perform Ethernet switch service procedures for a failing Ethernet link.
- Replace the Ethernet cable with a new one of the same type.
- Replace the node canister by following the steps in Replacing a node canister.
Ethernet port location | Configurable uses |
---|---|
port 1 on the rear of a node canister | TCP/IP connection to the service assistant TCP/IP connection to system management functions (GUI, CLI) (required) iSCSI connection to hosts |
port 2 on the rear of a node canister | TCP/IP connection to system management functions (GUI, CLI) iSCSI connection to hosts |